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How Many Planets in Our Solar System? Glad You Asked!
61 min

How Many Planets in Our Solar System? Glad You Asked!

How Astronomy Knew 6 Planets, Then Found 20 More, Then Went…

evcc – Open Source Sonne tanken
47 min

evcc – Open Source Sonne tanken

Dumme Wallboxen smart machen. Grünen und günstigen Strom…